CVE-2026-90045USB: gadget: ffs: fix mm lifetime handling
- 7.8HighCVSS base score
- 0.17%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: USB: gadget: ffs: fix mm lifetime handling io_data stores a pointer to the submitting task's mm_struct, but does not currently hold a reference to it while async requests are pending. This can result in a use-after-free if the task exits before completion handling finishes. Take a reference with mmgrab() when queuing the read request and release it with mmdrop() on request completion.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 44 days later
· 44 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 93% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 2e4c7553cd6f9c68bb741582dcb614edcbeca70f – < 68895e50c2250d9edd6e0a5967bf351221fd88b4
- affected 2e4c7553cd6f9c68bb741582dcb614edcbeca70f – < aee2fde0f39e2b667084f4d5cc323a5c5543d733
- affected 2e4c7553cd6f9c68bb741582dcb614edcbeca70f – < 1625827648f4e1595ea6ba5521bc87ee5088b32b
- affected 2e4c7553cd6f9c68bb741582dcb614edcbeca70f – < f3d31484b3f26d63c09e5569ebfaa1079a17f171
- affected 2e4c7553cd6f9c68bb741582dcb614edcbeca70f – < 7411de0ce3b45286de1de82526795658ea6eacb0
- affected 2e4c7553cd6f9c68bb741582dcb614edcbeca70f – < 5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8
- affected 3.15
- unaffected < 3.15
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.111 – ≤ 6.12.*
- unaffected 6.18.51 – ≤ 6.18.*
- unaffected 7.2.5 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/68895e50c2250d9edd6e0a5967bf351221fd88b4 (opens in a new tab)
- https://git.kernel.org/stable/c/aee2fde0f39e2b667084f4d5cc323a5c5543d733 (opens in a new tab)
- https://git.kernel.org/stable/c/1625827648f4e1595ea6ba5521bc87ee5088b32b (opens in a new tab)
- https://git.kernel.org/stable/c/f3d31484b3f26d63c09e5569ebfaa1079a17f171 (opens in a new tab)
- https://git.kernel.org/stable/c/7411de0ce3b45286de1de82526795658ea6eacb0 (opens in a new tab)
- https://git.kernel.org/stable/c/5eb5c72c72fef76cb765ef1669b62b6a3ba1bfc8 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-80653 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-90045)Record last updated .